Researchers at Oxford University suggest that people who are intelligent were more likely to trust others. This study is published in the journal PLOS ONE.
The researchers made use of data from the General Social Survey, which is a nationally representative public opinion survey conducted every one or two years in the US.
One of the reasons why intelligent people were more willing to trust could be because they were better at judging character and hence were more likely to form relationships with people who would not betray them while another reason suggested was because they were better at weighing up situations.
"Intelligence is shown to be linked with trusting others, even after taking into account factors like marital status, education and income. This finding supports what other researchers have argued, namely that being a good judge of character is a distinct part of human intelligence which evolved through natural selection. However, there are other possible interpretations of the evidence, and further research is needed to disentangle them", lead researcher Noah Carl said.